LiCl-Promoted Chain Growth Kumada Catalyst-Transfer Polycondensation of the "Reversed" Thiophene Monomer
文献类型：期刊论文
| 作者 | Wu, Shupeng1,2; Huang, Li1,2; Tian, Hongkun1; Geng, Yanhou1; Wang, Fosong1 |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2011-10-11 |
| 卷号 | 44期号:19页码:7558-7567 |
| ISSN号 | 0024-9297 |
| DOI | 10.1021/ma201192p |
| 英文摘要 | The effect of LiCl on the chain growth Kumada catalyst-transfer polycondensation (KCTP) of the "reversed" thiophene monomer, 5-bromo-2-chloromagnesio-3-hexylthiophene (3a) (that has bulky substituent adjacent to the chloromagnesium group), was investigated. LiCl promotes the polymerization of 3a, and the polymerization also exhibits living characteristics similar to those of the "normal" monomer, 2-bromo-5-chloromagnesio-3-heacylthiophene (3b). However, initiation is much slower than chain propagation due to the steric hindrance between hexyl groups in the transmetalation (TM) step that leads to the formation of the initiator via head-to-head (HH) coupling. Consequently, regioregular poly(3-hexylthiophene) (P3HT) with large polydispersity (PDI) and higher number-average molecular weight (M(n)) than the theoretical value was obtained. Because of the slow initiation with 3a, the polymerization of 3a occurs primarily after the consumption of 3b in the copolymerization of 3a and 3b, and P3HT with high regioregularity was still obtained. |
| 语种 | 英语 |
| WOS记录号 | WOS:000295487600009 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/72507]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Geng, Yanhou |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Shupeng,Huang, Li,Tian, Hongkun,et al. LiCl-Promoted Chain Growth Kumada Catalyst-Transfer Polycondensation of the "Reversed" Thiophene Monomer[J]. MACROMOLECULES,2011,44(19):7558-7567. |
| APA | Wu, Shupeng,Huang, Li,Tian, Hongkun,Geng, Yanhou,&Wang, Fosong.(2011).LiCl-Promoted Chain Growth Kumada Catalyst-Transfer Polycondensation of the "Reversed" Thiophene Monomer.MACROMOLECULES,44(19),7558-7567. |
| MLA | Wu, Shupeng,et al."LiCl-Promoted Chain Growth Kumada Catalyst-Transfer Polycondensation of the "Reversed" Thiophene Monomer".MACROMOLECULES 44.19(2011):7558-7567. |
入库方式： OAI收割
来源：化学研究所
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